If the software is updated with a new version the database ‘mesys.db’ should not be overwritten. Either the new installation is done in a new directory or the database file is copied to a different location.
After the new version is started the database can be updated by choosing menu ‘Extras’->’Database’->’Import from old database’. All custom entries will be updated. Changes to default data will be lost as only custom data will be copied.
For updates of a floating license in addition to the 'license.dat' the setting 'floatinglicense=' in 'mesys.ini' needs to be copied into the new version.